World Development Indicators, Global Development Finance, Africa Development Indicators, and Global Economic Monitor are now free, open, and easy to access at data.worldbank.org.
Recognizing that transparency and accountability are essential to development, the World Bank Group now provides free, open, and easy access to its comprehensive set of data on living standards around the globe—some 2,000 indicators, including hundreds that go back 50 years. The data is available in Arabic, French, and Spanish in addition to English.
"Open data will foster innovation." - Hans Rosling, Gapminder Foundation